I am looking to buy some ESC and LiPo batteries and have a couple of questions:

1)
I have 4 brushless motors which have a current rating of 13A and max current rating of 18A. For a quadcopter, all 4 motors would be supplied by a single battery. I think 4 of this ESC : (hobbyking.com/hobbyking/store/__6457__Hobbyking_SS_Series_18_20A_ESC.html)would work well along with this battery pack : (hobbyking.com/hobbyking/store/__8935__Turnigy_2200mAh_2S_25C_Lipo_Pack.html) What do you guys think?

2)
I also have a question about connectors. The LiPo battery link above mentions that the battery discharge connector is a 'XT60'. Since this end connects to the ESC, do all ESCs come with the corresponding connector? The ESC in the link above doesn't mention anything. What do you guys think?